Created attachment 668875 [details]
Yast Printer Configuration dialog

I use a HP LaserJet 400MFP M425dn for printing jobs. Recently the device
emitted a low ink warning (for the first) time. Printing via PC has been
deactivated since.

The low ink warning was at about 15% (factory setting). Upon reaching this
level a warning message appeared on the device and printing was disabled since.

Diagnosis:
- Printer is deactivated in YAST (see attachment)
- Printer is in the state "Stopped" in HP Device Manager>Printer control (see
second attachment)
- Message "supplies information not available for this device" in HP Device
Manager>Supplies

What I tried:
-Press the "Start Printer" button in HP Device Manager>Printer control. Result:
a message "job completed" in the Plasma taskbar, but no printing occurs. Always
reproducible
- try to reactivate printing in YAST (with root permissions):
YAST>Printer>Edit>click on activate printing, press the Ok button. Result: no
effect, printing is deactivated.Always reproducible.
- edit the configuration of the hardware on the touchpanel of the device: 
* Configuration>System>Material>Toner black>low level settings: is on "Go On"
nothing to do here.
* Configuration>System>Material>Toner black>low level value: set to 1%. Result
the warning message disappears on the touch panel
- trying to directly print from the hardware using the USB-port of the device.
Result: printing is possible

System Information:
Desktop PC with OpenSuse 13.2 and all updates.
hplip-sane-3.15.11-132.1.x86_64
hplip-3.15.11-132.1.x86_64
hplip-hpijs-3.15.11-132.1.x86_64
cups-libs-32bit-1.5.4-21.9.1.x86_64
cups-filters-foomatic-rip-1.0.58-2.11.1.x86_64
cups-libs-1.5.4-21.9.1.x86_64
cups-client-1.5.4-21.9.1.x86_64
cups-pk-helper-0.2.5-4.1.4.x86_64
python-cupshelpers-1.4.5-2.5.1.noarch
python-cups-1.9.66-2.1.3.x86_64
cups-1.5.4-21.9.1.x86_64
cups-filters-ghostscript-1.0.58-2.11.1.x86_64

I hope somebody finds out what's going on here.
Best regards
Thomas